mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-16 12:31:52 -04:00
Code Issues Packages Projects Releases Wiki Activity

powerpc/mm: implement arch_flush_lazy_mmu_mode()

Browse Source 
Upcoming changes to the lazy_mmu API will cause arch_flush_lazy_mmu_mode()
to be called when leaving a nested lazy_mmu section.

Move the relevant logic from arch_leave_lazy_mmu_mode() to
arch_flush_lazy_mmu_mode() and have the former call the latter.  The
radix_enabled() check is required in both as arch_flush_lazy_mmu_mode()
will be called directly from the generic layer in a subsequent patch.

Note: the additional this_cpu_ptr() and radix_enabled() calls on the
arch_leave_lazy_mmu_mode() path will be removed in a subsequent patch.

Link: https://lkml.kernel.org/r/20251215150323.2218608-4-kevin.brodsky@arm.com
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Reviewed-by: Yeoreum Yun <yeoreum.yun@arm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David Hildenbrand (Red Hat) <david@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Juegren Gross <jgross@suse.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kevin Brodsky
2025-12-15 15:03:12 +00:00
committed by Andrew Morton
parent 66bdd779d3
commit c3f0778ffe
1 changed files with 12 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
View File

@@ -41,7 +41,7 @@ static inline void arch_enter_lazy_mmu_mode(void)
batch->active = 1;
}
static inline void arch_leave_lazy_mmu_mode(void)
static inline void arch_flush_lazy_mmu_mode(void)
{
struct ppc64_tlb_batch *batch;
@@ -51,12 +51,21 @@ static inline void arch_leave_lazy_mmu_mode(void)
if (batch->index)
__flush_tlb_pending(batch);
}
static inline void arch_leave_lazy_mmu_mode(void)
{
struct ppc64_tlb_batch *batch;
if (radix_enabled())
return;
batch = this_cpu_ptr(&ppc64_tlb_batch);
arch_flush_lazy_mmu_mode();
batch->active = 0;
preempt_enable();
}
#define arch_flush_lazy_mmu_mode() do {} while (0)
extern void hash__tlbiel_all(unsigned int action);
extern void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize,